What are you after with the window sox, shading the inside? All the rear windows are already tinted but you could always just tint them again, and tint the fronts. The sox seem like they would be annoying to deal with.
2010 Expedition Limited now @ 27k
2012 Expedition Limited now @ 17k
Gone but not forgotten;
1995 Bronco XLT, 1996 Explorer XLT, 1999 Expedition EB, 2003 Expedition EB, 2004 Expedition EB Premium